<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./bootstrap/css/bootstrap.css">
    <style>
        .row div {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 50px;
      }
      .row div:first-child {
        background-color: pink;
      }

      .row div:nth-child(2) {
        background-color: #ccc;
      }

      .row div:last-child {
        background-color: skyblue;
      }
    </style>
    
</head>
<body>
    <div class="container">
        <!-- <div class="row">
          <div class="col-lg-3 col-md-8 col-sm-2 " >lg-4 md-8 sm-2</div>
          <div class="col-lg-6 col-md-2 col-sm-5">lg-6 md-2 sm-5</div>
          <div class="col-lg-3 col-md-2 col-sm-5">lg-2 md-2 sm-5</div>
        </div> -->
        <div class="row">
          <div class="col-lg-6 col-md-4 col-md-offset-9 col-lg-offset-3">
            col-lg-6 col-md-4
          </div>
        </div>
      </div>
</body>
</html>